#include "stdafx.h"
#include <iostream>

using namespace std;

// Standard C syntax
void swap(int *p, int *q)
{
	int temp;
	temp = *p;
	*p = *q;
	*q = temp;
}

int main()
{
	int a = 3, b = 5;
	swap(&a, &b);
	// want a=5, b=3
	return 0;
}